code: def setUpClass(cls):
      cls.kwargs = {
          "host": "",
          "port": 3306,
          "user": "root",
          "password": "",
          "database": "public",
          "db_engine": "mysql",
      }
      cls.handler = CloudSQLHandler(
          "test_cloud_sql_mysql_handler", cls.kwargs
      )
  
file_path: mindsdb/mindsdb/integrations/handlers/cloud_sql_handler/tests/test_cloud_sql_mysql_handler.py
imports: import unittest
  from mindsdb.integrations.handlers.cloud_sql_handler.cloud_sql_handler import CloudSQLHandler
  from mindsdb.api.executor.data_types.response_type import RESPONSE_TYPE
label_desc: Use image node_id 1 for calling the CloudSQLMySQLHandlerTest obj's underlying member method code with example usage: obj.setUpClass(cls) without return types